Jacquard embroidery-machine.



K. EGGART.

JACQUARD EMBROIDERY MACHINE.

APPLICATION FILED JAN-9,1914.

Patented Jan. 2,1917.

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K. EGGART.

.IACQUARD EMBROIDERY MACHINE.

APPLICATION FILED IAN-9,1914. 1,210,776. Patented Jan. 2,1917.

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K. EGGART.

MCQUARD EMBROIDERY MACHINE.

APPLICATION man 1AN.9. I914.

Patented Jan. 2, 1917.

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KARL EGGART, OF ARBON, SWITZERLAND, ASSIGNOR TO THE FIRM OF ADOLPHSAURER,

0F ARBON, SWITZERLAND.

JACQU ARD EMBROIDERY-MACHINE.

1,210,776. Original application flied June 10, 1913,

To all whom it may concern:

Be it known that I, KARL EGGART, a subject of the Emperor of Germany,residing at Arbon, Switzerland, have invented new and usefulImprovements in Jacquard Embroidery-Machines; and I do hereby declarethe following to be a full, clear, and exact description of theinvention, such as will enable others skilled in the art to which itappertains to make and use the same, reference being had to theaccompanying drawings, and to letters or figures of reference markedthereon, which form a part of this specification.

This invention relates to jacquard embroidering machines and has for itsobject to provide improved devices whereby the stitch forming mechanism,at the time of a change from embroidering to a special function, such asboring, may be thrown out of engagement without requiring the rotationof the main driving shaft to be stopped, as has been usual heretofore.

In the improved machine there are placed side by side on the drivingshaft differently curved cams for the operation of the special functionmechanism, such as the boring mechanism, and means are further providedwhereby, simultaneously with the disconnecting of the needle actuatingmechanism, the special function mechanism may be disconnected fromoperative relation with one cam into inoperative relation with the othercam, without requiring the rotation of the driving shaft to be stopped.

In the drawings-Figure 1 is a View in end elevation, partly in section,of a jacquard embroidering machine equipped with the invention, thejacquard mechanism itself being removed. Fig. 1 is a detail View of theupper right hand portion of the mechanism shown in Fig. 1. Fig. 2 is atop view of the lower portion of the mechanism shown in Fig. 1, withparts in section, the position of the jacquard mechanism being alsoshown in part. Fig. 3 is a detail view of a double cam. Fig. 4 is a Viewpartly in section on the plane indicated by the line AB of Fig. 1, thejacquard mechanism being also shown in part. Fig. 5 is a detail view insection on the plane indicated by the line CD of Fig. 1;

1 is the main shaft of the embroidering machine, which, depending uponthe speed it is to have, can be driven from the shaft 6 Specification ofLetters Patent.

Patented J an. 2, 1917.

Serial No. 772,774. Divided and this application filed January 9, 1914.Serial No. 811,145.

by means of the gears 2, 3 or 4, 5. On the shaft 1 there is fixedlymounted the needlecam 7, in whose groove there engages a roller 9,rotatably mounted on an axis 10, which is longitudinally slidable in abar 11. The bar 11 is connected at its upper and lower ends to cranks12. These cranks 12 are fixedly mounted on a shaft 13, to which aresecured levers 14, jointed to a rod 15, whereby the needle bars 16 canbe moved to and fro, the needle bars 16 are movably mounted throughbearings 15 on fixed rods 15". On the shaft 1 there is also fixedlymounted a cam 17 for operating the minor thread guides, and secured tothis cam is a circular disk 18. With the double cam thus constitutedthere cooperates a roller 19, which is rotatably mounted on an axis 20,which is longitudinally slidable in a fork 21. This latter is carried bya rod 22, to which are connected levers 23, rigidly secured to the minorthread guides 24. Mounted on the shaft 1 is also a cam 25 for impartingmotion to the major thread guides. This cam has a circular disk 26rigidly secured to it, so as to form a double cam, and with the latterthere engages a roller 27, whose axis 28 is slidable in longitudinaldirection in a fork 29, carried by a rod 30 to which are connectedlevers 31, rigidly connected with the major thread guides 32. There islikewise mounted on the main shaft 1 a cam 33 for actuating the fabricpressers. This cam cooperates with a roller 34, which is mounted in afork 35 without being capable of sliding axially, while the fork itselfis carried by a rod 36. The ends of the rod are connected to levers 37.the other extremities of which are mounted on shafts 38, which carry thefabric pressers 39. Also mounted on the shaft 1 is a grooved cam 40 forthe operation of the shuttles. This cam 40 has two adjacent grooves 79and 80. With one or the other of these grooves there engages a roller41, which is axially slidable on a lever 42, which vibrates on astationary pin 43. This lever 42 is connected by a rod 44, with a bentlever 45, which is connected to a rod 46, rigidly connected with theshuttle actuators 47. The roller 41 is rendered axially slidable by apin 48, which oscillates on a pin 50. To the pin 50 there is connected arod 74. The shaft 1 has further mounted on it a grooved cam 55, withwhich there coiiperates a roller 56. The latter is mounted withcapability of axial sliding in a lever 57 which oscillates 011 a shaft58, on which latter there is also mounted a lever 59, rigidly connected.with the lever 57. The other end of the lever 59 is connected by a pin60 with a lever.

bars 67, which are carried by the rods 66,

are thus reciprocated.

To the axis of the roller 56 there is connected a lever 81, which ispivoted by a pin.

82 to the arm 57, while the opposite end is connected to a rod 83, bymeans of a ball and socket joint, which rod 83 is connected, likewise bya ball and socket joint, with a rotatably mounted lever 84. With thislever 84 there is rigidly connected a lever 85, to

which there is connected a rod 86, whose other end is connected to acrank 87, which is rigidly connected to a shaft 88, which can beactuated from the jacquard apparatus by means of worm gearing 89,according to the pattern, in well-known manner, so that the' roller 56can be thrown in and out of gear by the jacquard apparatus.

The operation of the improved mechanism will now be explained.

When the roller 9 of the needle cam 7 is thrown-into operative relationwith the cam the roller 41 co6perates with the cam grove 80 of the disk40, and all the various devices mentioned which are requisite for theembroidering work, that is, the needles, thread guides, fabric pressersand shuttles, are thrown into gear. Should it be desired to change fromembroidering to perforating, however, all those devices whichwould'interfere with the work of perforating must be disengaged. Thisdisengagement is effected according to the present invention in thefollowing manner: The longitudinally slidable axes 10, 20, 28, uponwhich the rollers 9, 19, 27, are mounted with capability of rotation butnot of shifting laterally thereon, are provided with slotted end-piecesor links 7 O. In the slots there engage the pins 71 of levers 73, whichare rotatable on stationary pins 72, and whose other ends are connectedto a rod 74. To this rod 7 4 there is connected a bent lever 75, whichcan'be oscillated by means of a system of rods 76, 77, 78 from thejacquard apparatus. When this occurs,-in conformity with the holesin-the pattern card, then, without the main shaft 1 being stopped, theroller 9 will be drawn out of the groove of the needle cam 7, so thatthe needle operating. devices will be thrown out of operation. Theroller 19 will alsohbe shifted from the track 17 on to the circulartrack 18, whereby the minor thread guides will be brought to rest.Similarly the roller 27 will be shifted from the cam track 25 on to thecircular track 26, wherefore the major thread guides will also bebrought to rest. The roller41 will also .be shifted from the groove 80and caused to enter the cam groove 79. The fabric pressers are notthrown out of operation, because the roller 34 remains in engagementwith the cam 33 and because their motion in no wayinterferes with theperforating work. When now the roller 56 is caused by the jacquardapparatus to enter the groove of the perforating cam 55, the perforatingcan proceed, the power being derived from the main shaft, the rotationof which has not been discontinued.

This application is a division of app1i-ca-- tion Serial No. 772,774,filed June 10, 1913, on which have issued Letters Patent No. 1,118,115,dated November 24, 1914.

- Claimz' In a jacquard embroidery machine, in combination, a jacquardapparatus, perforating mechanism, a shaft, a needle cam, a,

thread-guide cam and a shuttle cam on the shaft, needle mechanism,thread-guide mechanism and shuttle mechanism operated by the cams, meansactuated by the jacquard apparatus for throwing the needle mechanism andthe thread-guide mechanism out of 0perative relation with the cams andfor effect- KARL EGGART.

